Oil changing device of a gear box

ABSTRACT

The present invention provides an oil changing device of a gear box including a bucket and an adjusting structure. The adjusting structure comprises a refueling device, an adjusting valve assembly and an oil-exporting tube. The adjusting valve assembly comprises an oil-importing valve and an oil-exporting switch. The refueling device is used for pressuring gear box oil stored in the containing room the bucket passing the oil-importing vale and going into the gear box, and the oil-exporting switch drives the gear box oil passing the oil-exporting tube and going out of the adjusting structure. As such, the oil changing device of a gear of the present invention can infuse new oil into the gear box and drain extra oil out directly.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to the field of oil-changing device, and more particularly to an oil-changing device of a gear box.

2. Description of the Prior Art

Please refer to FIG. 1, a conventional gear box comprises an oil-importing tube 51 and an oil-exporting hole. The conventional method for changing oil of the gear box is to drain the oil by the oil-exporting hole, putting on a lid 52 after draining the oil, and then connecting an oil tube with an opening of an oil importing tube to start infusing new oil. Note that the oil tube extends a certain length in the gear box. Thus, the oil level exactly touches a top end of the oil-importing tube when the gear box is refueled.

When the new oil is infused too much so that the oil level is over the top end of the oil-importing tube, there are two ways to drain extra oil. The first way is as described in the first paragraph, and the second way is to use an oil-importing tube capable of adjusting extending length. After adjusting the oil-importing tube to a suitable length, the extra oil can be drained out from the oil-importing tube.

However, both two ways described above have complex steps to change the oil. And an extra container is needed for containing the oil drained. Although the oil left can be reused, the new oil drained may be polluted or oxidized.

On the other hand, according to the first way described in the first paragraph, the oil is easy to sprinkle on the ground or users because of a fast sprinkling speed. By the second way, a refueling device has to be removed to drain the oil. But the new oil would leak out from the oil-importing tube to the ground in the process of removing the refueling device, causing an unnecessarily waste. Users have to spend extra effort s for cleaning the oil stains; or the environment would be polluted. Furthermore, passengers would slip and fall or a fire would be occurred easily.

SUMMARY OF THE INVENTION

The main object of the present invention is to provide an oil changing device of a gear box, and more especially to an oil changing device capable of being used to infuse and drain oil directly.

To achieve the above, the present invention provides an oil changing device including comprising a bucket and an adjusting structure. The adjusting structure is disposed between the bucket and a gear box.

The adjusting structure comprises a refueling device, an adjusting valve assembly, and an oil-exporting tube. The adjusting valve assembly comprises an oil-importing valve and an oil-exporting switch. The refueling device is used for pressuring gear box oil stored in the containing room of the bucket passing the oil-importing vale and going into the gear box, and the oil-exporting switch drives the gear box oil passing the oil-exporting tube and going out of the adjusting structure.

As such, the oil changing device of the present invention can infuse the new oil into the gear box and drain the extra oil out from the gear box.

The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment(s) in accordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic drawing showing a conventional method of changing oil;

FIG. 2 is a stereogram in accordance with the first embodiment of the present invention;

FIG. 3 is a schematic drawing showing a refueling condition in accordance with the first embodiment of the present invention;

FIG. 4 is a schematic drawing showing a condition of grain oil in accordance with the first embodiment of the present invention;

FIG. 5 is a schematic view showing a connection with a gear box in accordance with the second embodiment of the present invention;

FIG. 6 is a schematic view showing a connection with a gear box in accordance with the third embodiment of the present invention;

FIG. 7 is a stereogram in accordance with the fourth embodiment of the present invention;

FIG. 8 is a schematic drawing showing an oil-exporting device stored in a storage device of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer to FIG. 2 and FIG. 4, the oil changing device of the present invention is capable of connecting to a gear box 3 including an oil-importing tube 31. In the first embodiment of the present invention, the oil changing device comprises a bucket 1 and an adjusting structure.

The bucket has a bucket opening and a containing room. The containing room connects to the bucket opening. The bucket comprises a lid 11 closed on the bucket opening, and the containing room is used for storing oil of the gear box. The oil of the gear box can be new oil as well.

One end of the adjusting structure is disposed on the bucket, and another end of the adjusting structure can be used for connecting with the gear box. The adjusting structure connects the containing room to the gear box so that oil ducts are adjusted by the adjusting structure. The adjusting structure comprises a refueling device 21, an adjusting valve assembly, an oil-exporting tube 23, an oil-importing tube 24, and an oil-exporting tube 25. The refueling device is disposed on the bucket, and the adjusting valve assembly comprises an oil-importing valve 221, an oil-exporting valve 222, an oil-exporting switch 223 and T-valve. The T-valve comprises a first tube 224 and a second tube 225. The first tube 224 has a first opening 227 and a second opening 226 at both ends respectively. The second tube 225, having an opening 228 on one end away from the first tube 224, horizontally extends from a lateral side of the first tube 224. The oil-importing valve 221 is disposed with the first tube 224. The oil-importing valve 221 is close to the second opening 226 of the first tube 224. The oil-importing tube 24 connects the bucket 1 to the second opening 226 of the first tube 224 so that the oil-importing tube 24 connects the oil-importing valve 221 to the containing room. The oil-exporting switch is disposed with the first tube with being close to the first opening 227 of the first tube. The oil-exporting valve 222 is disposed between the first opening 227 of the first tube and the oil-exporting switch. The bucket 1 is disposed with an inserting portion 12, and the inserting portion 12 has a hole 121 connecting to the containing room. One end of the oil-exporting tube 25 connects to the first opening 227 of the first tube, and another end of the oil-exporting tube 25 is engaged with the inserting portion. One end of the connecting tube 23 connects to the opening 228 of the second tube 225, and another end of the connecting tube 23 can be used for connecting to the gear box. To increase more perfection to the oil changing device of the present invention, the connecting tube 23 comprises a switch device 231 used for the connecting tube 23 so that the connecting tube 23 connects the adjusting valve to the gear box selectively. As such, the switch of the connecting tube 23 and the oil-exporting switch 223 can be closed before changing oil so that the new oil would not be oxidized or polluted.

Users can drain the oil in the gear box out before changing the oil. Please refer to FIG. 3, the oil changing device is filled with the new oil, and users can make the connecting tube 23 engage with the oil-importing tube 24, and then start up the switch of the connecting tube 23 with closing up the oil-exporting switch 223 at the same time. Finally, pressuring the refueling device 21 to make the new oil stored in the containing room pass in a sequence of the oil-importing tube, the oil-importing valve, the connecting tube and the oil-importing tube and the gear box. Moreover, the bucket 1 has a pressure-draining hole (not shown in the figures.), and the pressure-draining hole can be used for the containing room to retain a pressure condition before being added with pressure.

Please refer to FIG. 4, when the new oil is infused and over a top of the oil-importing tube 24, the oil-exporting switch 223 can be switched on so that the new oil can pass through the oil-exporting tube 25, going out of the adjusting structure and back into the bucket 1. As such, the oil changing device of the present invention can recycle extra oil in the gear box in the bucket 1 directly. Users don't have to prepare other containers to contain the extra oil. Thus, the new oil would not be oxidized or polluted easily. A condition that the oil sprinkles on users or the ground in the process of recycling would not occurred.

More importantly, the oil-importing valve 221 and the oil-exporting vale 222 are unidirectional. That is, the new oil would not flow back to the bucket 1 after passing the oil-importing valve 221 in the process of infusing the new oil. Also, the extra oil would not flow back to the bucket 1 via the oil-importing valve 221 in the process of draining the oil. As such, the oil changing device of the present invention can keep a certain efficiency of infusing and draining the oil.

Please refer to FIG. 5, in the second embodiment different from the first embodiment of the present invention, one end of the connecting tube 23 connects to the first opening 227 of the first tube, and another end of the connecting tube 23 can be used for connecting to the gear box. The oil-exporting switch 223 is disposed with the second tube 225 close to the opening 228 of the second tube 225, the oil-exporting valve 222 is disposed between the opening 228 of the second tube 225 and the oil-exporting switch 223, one end of the oil-exporting tube 25 connects to the opening 228 of the second tube 225, another end of the oil-exporting tube 25 has an oil-exporting opening engaged with the inserting portion. Thus, the oil-exporting tube 25 connects the oil-exporting valve 222 to the containing room.

In the third embodiment different from the second embodiment of the present invention, as shown in FIG. 6, the bucket 1 exposes the oil-exporting opening 251 of the oil-exporting tube to surroundings instead of having an inserting portion. As such, the oil-exporting opening 251 can connect with an extra container to collect the extra oil so that an oil quality of the new oil in the bucket 1 can be kept in the best condition. What is worth mentioning is that the oil-importing valve is unidirectional, so the new oil would not flow back to the bucket 1 from the oil-importing valve. Therefore, the best condition of the oil quality is sure to be kept.

In the fourth embodiment different from the first embodiment of the present invention, as shown in FIG. 7, the adjusting valve is disposed on the lid. The lid has an inserting hole connecting with the containing room. The adjusting valve includes a valve 229. One end of the connecting tube 23 connects to the valve 229, and another end of the connecting tube 23 can be used for connecting to the gear box. One end of the oil-exporting tube 25 is engaged with the inserting hole, and another end of the oil-exporting tube 25 connects to the valve 229. The oil-exporting switch 223 is disposed with the oil-exporting tube 25 so that the oil-exporting tube 25 connects the connecting tube to the containing room selectively. To increase more perfection to the oil changing device of the present invention, the oil-exporting switch is a speed-controlling valve used for the oil-exporting tube to connect the connecting tube to the containing room selectively. Also, the speed-controlling valve can be used for controlling a flowing speed of the oil. And the adjusting valve is disposed on the lid directly. Under a condition that the connecting tube is still disposed between the gear box and the valve 229, users can disassemble the bucket 1 from the lid, and dispose an extra bucket used to contain the extra oil with the lid. As such, the best condition of the oil quality is also sure to be kept.

To explain more, cars of different types need different sizes of gear boxes. And a distance between car chassis and the ground is also different from one car to another. In fourth embodiment described above, under the condition that the connecting tube 23 is still disposed between the gear box and the valve 229, users can choose a suitable bucket of a suitable size according to the size of the gear box or the distance between car chassis and the ground. And then users can dispose the bucket of a suitable size with the lid.

Please refer to FIG. 8, the oil changing device further comprises a storage device 4, and the storage device 4 includes a tube-shaped member disposed on the bucket, and the oil-exporting switch 223 with a handle is received in the tube-shaped member so that the tubes and the T-valve would not sway.

In conclusion, apart from infusing the new oil into the gear box, the oil changing device of the present invention can drain the extra oil out from the gear box, recycling the extra oil in the bucket 1 or the extra container directly. Moreover, the oil changing device of the present invention can also keep a certain efficiency of infusing and draining the oil. 

1. An oil changing device of a gear box, used for connecting to the gear box, the oil changing device comprising: a bucket, having a containing room, the containing room being used for storing oil of the gear box; an adjusting structure, one end of the adjusting structure being disposed on the bucket, another end of the adjusting structure can be used for connecting with the gear box, the adjusting structure connecting the containing room to the gear box so that oil ducts are adjusted by the adjusting structure; wherein the adjusting structure comprises a refueling device, an adjusting valve assembly, and an oil-exporting tube, the refueling device is disposed on the bucket, the adjusting valve assembly comprises an oil-importing valve and an oil-exporting switch, the refueling device is used for pressuring gear box oil stored in the containing room of the bucket passing the oil-importing vale and going into the gear box, the oil-exporting switch drives the gear box oil passing the oil-exporting tube and going out of the adjusting structure.
 2. The oil changing device of claim 1, wherein the adjusting structure comprises an oil-importing tube, the adjusting valve assembly comprises a T-valve, the T-valve comprises a first tube and a second tube, the first tube has a first opening and a second opening at both ends respectively, the second tube horizontally extends from a lateral side of the first tube, the second tube has an opening on one end away from the first tube; the oil-importing valve is disposed with the first tube, the oil-importing valve is close to one opening of the first opening and the second opening of the first tube, the oil-importing tube connects the bucket to either the first opening or the second opening of the first tube.
 3. The oil changing device of claim 2, wherein the adjusting structure comprises a connecting tube, one end of the connecting tube connects to the opening of the second tube, another end of the connecting tube can be used for connecting to the gear box, the oil-exporting switch is disposed with the first tube with being close to the first opening of the first tube, the adjusting valve assembly comprises an oil-exporting valve, the oil-exporting valve is disposed between the first opening of the first tube and the oil-exporting switch, the bucket is disposed with an inserting portion, the inserting portion has a hole connecting to the containing room, one end of the oil-exporting tube connects to the first opening of the first tube, another end of the oil-exporting tube is engaged with the inserting portion.
 4. The oil changing device of claim 2, wherein one end of the connecting tube connects to the first opening of the first tube, another end of the connecting tube can be used for connecting to the gear box, the oil-exporting switch is disposed with the second tube close to the opening of the second tube, the adjusting valve assembly comprises an oil-exporting valve, the oil-exporting valve is disposed between the opening of the second tube and the oil-exporting switch, one end of the oil-exporting tube connects to the opening of the second tube, another end of the oil-exporting tube has an oil-exporting opening.
 5. The oil changing device of claim 4, wherein the oil-exporting opening of the oil-exporting tube is exposed to surroundings, the surroundings is an external space outside the oil changing device.
 6. The oil changing device of claim 4, wherein the bucket is disposed with an inserting portion, the inserting portion has a hole connecting to the containing room, one end of the oil-exporting tube connects to the opening of the second tube, another end of the oil-exporting tube is inserted in the inserting portion.
 7. The oil changing device of claim 1, wherein the bucket comprises a lid, the refueling device is disposed on the lid, the adjusting valve assembly is disposed with the lid, the lid has an inserting hole connecting to the containing room; wherein, the adjusting structure comprises a connecting tube, the adjusting valve assembly comprises a valve, one end of the connecting tube connects to the valve, another end of the connecting tube can be used for connecting to the gear box, one end of the oil-exporting tube is engaged with the inserting hole, another end of the oil-exporting tube connects to the valve, the oil-exporting switch is disposed with the oil-exporting tube so that the oil-exporting tube connects the connecting tube to the containing room selectively.
 8. The oil changing device of claim 7, wherein the oil-exporting switch is a speed-controlling valve, the speed-controlling valve is used for the oil-exporting tube to connect the connecting tube to the containing room selectively.
 9. The oil changing device of a gear box of claim 1, wherein the oil changing device of a gear box further comprises a storage device, the storage device is used for storing the oil-exporting switch.
 10. The oil changing device of claim 2, wherein the oil changing device of a gear box further comprises a storage device, the storage device is used for storing the oil-exporting switch.
 11. The oil changing device of claim 3, wherein the oil changing device of a gear box further comprises a storage device, the storage device is used for storing the oil-exporting switch.
 12. The oil changing device of claim 4, wherein the oil changing device of a gear box further comprises a storage device, the storage device is used for storing the oil-exporting switch.
 13. The oil changing device of claim 5, wherein the oil changing device of a gear box further comprises a storage device, the storage device is used for storing the oil-exporting switch.
 14. The oil changing device of claim 6, wherein the oil changing device of a gear box further comprises a storage device, the storage device is used for storing the oil-exporting switch.
 15. The oil changing device of claim 1, wherein the connecting tube comprises a switch device, the switch device is used for the connecting tube so that the connecting tube connects the adjusting valve to the gear box selectively.
 16. The oil changing device of claim 2, wherein the connecting tube comprises a switch device, the switch device is used for the connecting tube so that the connecting tube connects the adjusting valve to the gear box selectively.
 17. The oil changing device of claim 3, wherein the connecting tube comprises a switch device, the switch device is used for the connecting tube so that the connecting tube connects the adjusting valve to the gear box selectively.
 18. The oil changing device of claim 4, wherein the connecting tube comprises a switch device, the switch device is used for the connecting tube so that the connecting tube connects the adjusting valve to the gear box selectively.
 19. The oil changing device of claim 5, wherein the connecting tube comprises a switch device, the switch device is used for the connecting tube so that the connecting tube connects the adjusting valve to the gear box selectively.
 20. The oil changing device of claim 6, wherein the connecting tube comprises a switch device, the switch device is used for the connecting tube so that the connecting tube connects the adjusting valve to the gear box selectively. 